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THERMODYNAMIC ANALYSIS OF LIQUID DESICCANTS

机译:液体干燥剂的热力学分析

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Liquid desiccants are widely used in many solar applications. In order to analyze the performance of the system using desiccant technology, the thermophysical properties of desiccants are essential. In particular, the vapor pressure of the liquid desiccant is one of the important properties in air dehumidi-fication. In this paper, an attempt is made to predict this property based on a classical thermodynamics approach and it is found that the predicted values for lithium chloride agree very well with the experimental results. The desired sorption properties can also be obtained by mixing the desiccants, which is another method of developing a new cost-effective liquid desiccant. In this paper, simple mixing rules are used to predict the vapor pressure, density, and viscosity of the desiccant mixture, namely calcium chloride and lithium chloride. It is found that the interaction parameter need not be included in calculating the density and vapor pressure of the above mixture but must be included in predicting the viscosity.
机译:液体干燥剂被广泛用于许多太阳能应用中。为了使用干燥剂技术分析系统的性能,干燥剂的热物理性质至关重要。特别地,液体干燥剂的蒸气压是空气除湿中的重要特性之一。在本文中,尝试基于经典的热力学方法来预测该性质,并且发现氯化锂的预测值与实验结果非常吻合。还可以通过混合干燥剂来获得所需的吸附性能,这是开发新型经济高效的液体干燥剂的另一种方法。在本文中,使用简单的混合规则来预测干燥剂混合物(即氯化钙和氯化锂)的蒸气压,密度和粘度。已经发现,相互作用参数不必包括在计算上述混合物的密度和蒸气压中,而必须包括在预测粘度中。

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